B63H 1/22

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
7090550 Propeller with variable geometry and method for varying geometry of a propellerJan 23, 04Aug 15, 06LOCKHEED MARTIN CORPORATION
6972498 Variable diameter wind turbine rotor bladesMay 28, 02Dec 06, 05GENERAL ELECTRIC COMPANY
6027310 Ceiling fan with easy installation featuresJul 26, 99Feb 22, 00ANGELO FAN BRACE LICENSING, LLC
5562413 Variable propeller for boatDec 27, 94Oct 08, 96Honda Giken Kogyo Kabushiki Kaisha
5183384 Foldable propeller assemblyMay 16, 88Feb 02, 93Not available
4801243 Adjustable diameter screw propellerNov 03, 87Jan 31, 89ROLLS-ROYCE NAVAL MARINE, INC.
4297079 Variable pitch marine propellerJul 14, 80Oct 27, 81Goodall SemiMetallic Hose & Mfg. Co., GOODALL SEMIMETTALIC HOSE & MFG. CO.,